Non-orthogonal multiple access: a unified perspective
Non-orthogonal multiple access: a unified perspective
Non-orthogonal multiple access (NOMA) is a promising technique for future mobile communication systems, which can approach multiuser channel capacity by sharing the same time-frequency resources with multiple users. In this article, we provide a unified framework for NOMA and review the principles of various NOMA schemes in different domains with the objective of creating a unified framework. A systematic performance comparison of different NOMA schemes regarding their peak-to-average power ratio, receiver complexity, latency, grant-free access, user load, and peak throughput is also provided for different application scenarios. Relying on our unified framework, we generalize the current understanding of the NOMA principle from the conventional code and power domains to the spatial domain as well as to their hybrids and to the networking domain. Finally, the challenges in terms of resource allocation, channel estimation, security, system flexibility, and implementation issues are also discussed.
10-16
Wang, Qi
91220429-39a1-459a-9dfb-20fb90bfa974
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
April 2018
Wang, Qi
91220429-39a1-459a-9dfb-20fb90bfa974
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Wang, Qi, Zhang, Rong, Yang, Lieliang and Hanzo, Lajos
(2018)
Non-orthogonal multiple access: a unified perspective.
IEEE Wireless Communications, 25 (2), .
(doi:10.1109/MWC.2018.1700070).
Abstract
Non-orthogonal multiple access (NOMA) is a promising technique for future mobile communication systems, which can approach multiuser channel capacity by sharing the same time-frequency resources with multiple users. In this article, we provide a unified framework for NOMA and review the principles of various NOMA schemes in different domains with the objective of creating a unified framework. A systematic performance comparison of different NOMA schemes regarding their peak-to-average power ratio, receiver complexity, latency, grant-free access, user load, and peak throughput is also provided for different application scenarios. Relying on our unified framework, we generalize the current understanding of the NOMA principle from the conventional code and power domains to the spatial domain as well as to their hybrids and to the networking domain. Finally, the challenges in terms of resource allocation, channel estimation, security, system flexibility, and implementation issues are also discussed.
Text
NOMA_mag
- Accepted Manuscript
More information
Accepted/In Press date: 1 January 2018
e-pub ahead of print date: 30 April 2018
Published date: April 2018
Identifiers
Local EPrints ID: 417124
URI: http://eprints.soton.ac.uk/id/eprint/417124
ISSN: 1536-1284
PURE UUID: 5dc8e919-4699-4746-8f5c-d950d8af2ff6
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Date deposited: 19 Jan 2018 17:30
Last modified: 18 Mar 2024 02:49
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